Window ventilator



- 4 4 of Figure 2.

`Patented Aug. 21,Y 1928.

Y, 'i 1,681,206 UNITED `STATES P ATENToFFIcE.

OSBORNE R. VWITTER, OF SWAMPSCOTT, MASSACHUSETTS; LAWRENCE OSBORNE WIT-TER ADMINISTRATOR OF SAID OSBORNE R. VVETT'LR, DECEASED.

wrivnow VENTILATOR.

'Application led. October 21, 1927. Serial No. 227,668.

This invention relates to a window ven-V tilator comprising awindshieldwhich 1s co-` extensive with the openingv formed by raising the lowersash of a window, and means for connecting the shield with the windowcasing Ain such manner as to cause the shield to upwardly deflect airpassing through said opening, so that the the room.y j

One object `of the `invention is to provide an eiiicient ventilator. ofrelatively inexpensive construction andl capable of `being quickly andconveniently installed and removed. i Y` Another object is to provideyimproved means enabling the length of the ventilator to be convenientlyvaried to suit windows of air flows upwardly into different widths.

Other objects will hereinafter appear.

`Of the` accompanying drawings forming a part of this speciication,-

Figure 1 shows in perspective a ventilator embodying the invention, andportions of a window casing, the sashes being omitted. Figure 1a `showsin perspective one ot the studs shown by Figure 1.

Figure 2 is a vertical section on line 2-2 oi Figure 1.

Figure 3 is a fragmentary section on line 3`3 of Figure 2.

Figure 4 is a fragmentary section on line Figure 5 vis a perspectiveview of the windshield, showing certain modifications.

Figure. 6 is an edge wiew, showing an angular cross-.bar of modifiedconstruction.

j j Figure 7 is a fragment-ary perspective view, showing an arm of thecross-bar shown by Figure 6, a'portion of the windshield,

and one of the hooks shown by Figure 5.

The same reference characters indicate the same parts in all of thefigures.

I will rst. describe' the preferred embodiv ment of` the invention shownby Figures 1, `2, 3, and 4.

The ventilator comprises an angular windshield-supporting cross-bar,adapted to extend across a window casing and including an elongated neckportion 12, and arms 13, 13, projecting from opposite ends ofthe neckportion..A The arms are provided at their outer ends with means wherebythey may be attached to the upright members of a window casing, one ofsaid members, designated by 14, being .shown byv` Figures 1 and 2.

and 7) (Figure 1),

When the arms are thus attached,'the neck portion projects invariablyinward from the casing. I

The cross-bar and arms made of sheet metal, bent uros 1, 2. and 3, toform stilfening flanges projecting inwardly from each of theirlongitudinal edges, the neck portion. being preferably composed oit' twotelescopic sections a one slidable in the other to vary the length ofthe cross-bar. The arms 13 have orifices 15 (Figure 1) forming socketsladapted to receive studs 16, attached to plates 17, which may beattached by screws 18 to thetwo uprightcasingmembers 14.

The ventilator comprises also a flexible windshield 20, of any suitablecloth, having a relatively longc upper edge 21, whose length issubstantially equal to the aggregate length of the neck portion 12 andarms 13, a shorter lower' edge 22, whose length issubas shown by Fig-Vstantially'or approximately equal to the distance between theuprightmembers 14 of the casing, and intermediate edges 23, 23, eX-. tending'between the ends of the longer and shorter edges.

The longer edge of the windshield is provided with a longitudinal hem,forming a longer upper pocket 24, open at its ends, through which theangular' cross-bar eX- tends, the pocket being slidableon the crossbar,so that `it may be readily applied and removed, and puckered.V Theshorter edge of the windshield is providedY with a vlongi tudinal hem,forming a shorter lower pocket 25, open at its ends and/,receiving astraight lower cross-bar 26, the ends of which project from the pocketand have sockets 27, `adapted to receive studs 28, attached to the sillmember 14?* lof the casing. The, `studs k28 are screw-threadedV at theirlower ends and 13 are preferably i screwed into the sill member, eachstud be- Y fit) edge of the shield, the upper edge and the major portionof the shield conforming to the angularity o'l the cross-har. The lengthot the lower edge of the shield heing suhstantially or approximatelyetlual to the. dif,- tanee between the upright easing member4 il, itl'ollows that when the ventilator is adjusted lor use.l the end portionsol the shield form t'riaiigular flanges 2U eonlforuiing to the uprighteasing inemhers li.. The shield. therefore. forms one side, and oppositeends of a llue adapted to upwardly detleet. air entering at the openingl'ornied hy raising the. lower sash.

The if'entilator may he quickly applied and removed, hy engaging thecross-hars with the Studs7 and removing them tl'ierelirom.

The pockets 2l and 25, Slidable on the angular upper and lowereinen-hars enable the width ot the windshield to be eonlornied `to. thelength ol the eros-hars when said parte are teleaeopie and of variablelength7 the'windhield liieing pueliered on the crosshar when the widthof the Yentilator is decreased.

lV pre l'er to support the lower edge of the windshield ahove the sillmemher l-l of the easing. to `torni an air space at .s (Figure 2) forthe egress of air displaced within the room by air deflected upwardlyinto the room hy the windshield.

T he angular cross-bar may he constructed as shown hy Figures G and 7,and may inelude solid arm portion` '13 engaged with the heut, endsv ofteleseoping sheet metal portions 12th The armportions 13 maj7 beprovided with holes 13" to reeeive serews or nails. attaching the armportions to the upright n'ieinher:` lfl of the fasine.

I claim:

1. A window ventilator Comprising an angular upper eroSS-har including aneck portion and arms projeetiing laterally therefrom andI haringsecuring meana attarhahle to upright members of a window easing, tosupport the cross-bar, and maintaining the neel; portion invariablyspaced from the dining, a. straight lower cross-har formed to extendbetween said upright; members, and having means attaehahle to the sillnieniher ot the easing, and a lieiihle windshield haring :in elongatedupper edge, Alorined h r an upper pocket adapted to rereire the nerkportion and the arms otE the erossdiar, a yhoi-ter lower edge, loi-inedhy a lower poeltet adapted to reeeire the lower (irons-har, andintermediate straight. edges extending het weeu aid poele ets. the uppercross-har heing roniposed of Sheet metal haring stili'ening tlangesrformed on the opposite longitudinal edgw` ol the neel; and armportions' thereot'. fro thaty :mid eroga-har is ot minimum weight', andade (plate stillnew.

2. A window rentilator roinpii ii|g an angular upper cross-liar.ineluding a leleSi-opie neel; portion, adjtwtahle in length. andcoinpofled o'l' two seetions. one Slidahle ou the other-` and armaprojeeting laterally from the ends olt the neizlt' sertions, a atraiglitlower cross-har7 adjustahle in length. and romposed ol' two set-tions,one slidahle on the other. and a tlexihle windshield haring :inelongated upper edge l'ornied hy an upper porket. and adapted to looselyreeeive the nerli portion and arms ot the upper erwin-har. a shorterlower edge formed hy a pot-liet, adapted to looseljv reeeire the lowercross-har and inten mediate. I traight edges extending lit-tween saidpoeliets, the arms olA the upper' orma'- har andy the ends ol' the lowercross-har heing provided with nieans` for attarhinenl to upright;nien'ihers and the @ill nieuiher of a window eaeing, said meansmaintaining the tzwo eross-hare at any length to whirh they majv headjusted. the pockets heing adapted to he puekered on the crown-lairsvto eont'orin the length of the windshield to the length ot thecross-hars the angular eross-har heing composed of two L- haped sheet,metal tripsf eat-.h eonetituting a neck -aeetion and an arni. and xaehharing tiill'ening flange lient; in wardly troni each olf itslongitudinal edge. the neel( set-tion oi one at'rip heiug alidahle inthe neelrseet ion of the other.

In testimony whereofA l have allixed my signature.

llt)

